//===- opt.cpp - The LLVM Modular Optimizer -------------------------------===//
-//
+//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+//
//===----------------------------------------------------------------------===//
//
// Optimizations may be specified an arbitrary number of times on the command
-// line, they are run in the order specified.
+// line, They are run in the order specified.
//
//===----------------------------------------------------------------------===//
#include "llvm/Bytecode/WriteBytecodePass.h"
#include "llvm/Assembly/PrintModulePass.h"
#include "llvm/Analysis/Verifier.h"
+#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Support/PassNameParser.h"
#include "llvm/System/Signals.h"
+#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PluginLoader.h"
+#include "llvm/Support/Streams.h"
#include "llvm/Support/SystemUtils.h"
-#include "llvm/Transforms/LinkAllPasses.h"
+#include "llvm/Support/Timer.h"
+#include "llvm/LinkAllPasses.h"
+#include "llvm/LinkAllVMCore.h"
+#include <iostream>
#include <fstream>
#include <memory>
#include <algorithm>
-
using namespace llvm;
// The OptimizationList is automatically populated with registered Passes by the
// PassNameParser.
//
-static cl::list<const PassInfo*, bool,
- FilteredPassNameParser<PassInfo::Optimization> >
-OptimizationList(cl::desc("Optimizations available:"));
+static cl::list<const PassInfo*, bool, PassNameParser>
+PassList(cl::desc("Optimizations available:"));
+static cl::opt<bool> NoCompress("disable-compression", cl::init(false),
+ cl::desc("Don't compress the generated bytecode"));
// Other command line options...
//
static cl::opt<std::string>
-InputFilename(cl::Positional, cl::desc("<input bytecode>"), cl::init("-"));
+InputFilename(cl::Positional, cl::desc("<input bytecode file>"),
+ cl::init("-"), cl::value_desc("filename"));
static cl::opt<std::string>
OutputFilename("o", cl::desc("Override output filename"),
static cl::alias
QuietA("quiet", cl::desc("Alias for -q"), cl::aliasopt(Quiet));
+static cl::opt<bool>
+AnalyzeOnly("analyze", cl::desc("Only perform analysis, no optimization"));
+
+static Timer BytecodeLoadTimer("Bytecode Loader");
+
+// ---------- Define Printers for module and function passes ------------
+namespace {
+
+struct ModulePassPrinter : public ModulePass {
+ const PassInfo *PassToPrint;
+ ModulePassPrinter(const PassInfo *PI) : PassToPrint(PI) {}
+
+ virtual bool runOnModule(Module &M) {
+ if (!Quiet) {
+ cout << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
+ getAnalysisID<Pass>(PassToPrint).print(cout, &M);
+ }
+
+ // Get and print pass...
+ return false;
+ }
+
+ virtual const char *getPassName() const { return "'Pass' Printer"; }
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.addRequiredID(PassToPrint);
+ AU.setPreservesAll();
+ }
+};
+
+struct FunctionPassPrinter : public FunctionPass {
+ const PassInfo *PassToPrint;
+ FunctionPassPrinter(const PassInfo *PI) : PassToPrint(PI) {}
+
+ virtual bool runOnFunction(Function &F) {
+ if (!Quiet) {
+ cout << "Printing analysis '" << PassToPrint->getPassName()
+ << "' for function '" << F.getName() << "':\n";
+ }
+ // Get and print pass...
+ getAnalysisID<Pass>(PassToPrint).print(cout, F.getParent());
+ return false;
+ }
+
+ virtual const char *getPassName() const { return "FunctionPass Printer"; }
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.addRequiredID(PassToPrint);
+ AU.setPreservesAll();
+ }
+};
+
+struct BasicBlockPassPrinter : public BasicBlockPass {
+ const PassInfo *PassToPrint;
+ BasicBlockPassPrinter(const PassInfo *PI) : PassToPrint(PI) {}
+
+ virtual bool runOnBasicBlock(BasicBlock &BB) {
+ if (!Quiet) {
+ cout << "Printing Analysis info for BasicBlock '" << BB.getName()
+ << "': Pass " << PassToPrint->getPassName() << ":\n";
+ }
+
+ // Get and print pass...
+ getAnalysisID<Pass>(PassToPrint).print(cout, BB.getParent()->getParent());
+ return false;
+ }
+
+ virtual const char *getPassName() const { return "BasicBlockPass Printer"; }
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.addRequiredID(PassToPrint);
+ AU.setPreservesAll();
+ }
+};
+
+} // anonymous namespace
+
//===----------------------------------------------------------------------===//
// main for opt
//
int main(int argc, char **argv) {
+ llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
try {
cl::ParseCommandLineOptions(argc, argv,
- " llvm .bc -> .bc modular optimizer\n");
+ " llvm .bc -> .bc modular optimizer and analysis printer \n");
sys::PrintStackTraceOnErrorSignal();
- // Allocate a full target machine description only if necessary...
+ // Allocate a full target machine description only if necessary.
// FIXME: The choice of target should be controllable on the command line.
std::auto_ptr<TargetMachine> target;
- TargetMachine* TM = NULL;
std::string ErrorMessage;
// Load the input module...
std::auto_ptr<Module> M(ParseBytecodeFile(InputFilename, &ErrorMessage));
if (M.get() == 0) {
- std::cerr << argv[0] << ": ";
+ cerr << argv[0] << ": ";
if (ErrorMessage.size())
- std::cerr << ErrorMessage << "\n";
+ cerr << ErrorMessage << "\n";
else
- std::cerr << "bytecode didn't read correctly.\n";
+ cerr << "bytecode didn't read correctly.\n";
return 1;
}
if (OutputFilename != "-") {
if (!Force && std::ifstream(OutputFilename.c_str())) {
// If force is not specified, make sure not to overwrite a file!
- std::cerr << argv[0] << ": error opening '" << OutputFilename
- << "': file exists!\n"
- << "Use -f command line argument to force output\n";
+ cerr << argv[0] << ": error opening '" << OutputFilename
+ << "': file exists!\n"
+ << "Use -f command line argument to force output\n";
return 1;
}
std::ios::openmode io_mode = std::ios::out | std::ios::trunc |
Out = new std::ofstream(OutputFilename.c_str(), io_mode);
if (!Out->good()) {
- std::cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
+ cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
return 1;
}
PassManager Passes;
// Add an appropriate TargetData instance for this module...
- Passes.add(new TargetData("opt", M.get()));
+ Passes.add(new TargetData(M.get()));
// Create a new optimization pass for each one specified on the command line
- for (unsigned i = 0; i < OptimizationList.size(); ++i) {
- const PassInfo *Opt = OptimizationList[i];
+ for (unsigned i = 0; i < PassList.size(); ++i) {
+ const PassInfo *PassInf = PassList[i];
+ Pass *P = 0;
+ if (PassInf->getNormalCtor())
+ P = PassInf->getNormalCtor()();
+ else
+ cerr << argv[0] << ": cannot create pass: "
+ << PassInf->getPassName() << "\n";
+ if (P) {
+ Passes.add(P);
+
+ if (AnalyzeOnly) {
+ if (dynamic_cast<BasicBlockPass*>(P))
+ Passes.add(new BasicBlockPassPrinter(PassInf));
+ else if (dynamic_cast<FunctionPass*>(P))
+ Passes.add(new FunctionPassPrinter(PassInf));
+ else
+ Passes.add(new ModulePassPrinter(PassInf));
+ }
+ }
- if (Opt->getNormalCtor())
- Passes.add(Opt->getNormalCtor()());
- else if (Opt->getTargetCtor()) {
-#if 0
- if (target.get() == NULL)
- target.reset(allocateSparcTargetMachine()); // FIXME: target option
-#endif
- assert(target.get() && "Could not allocate target machine!");
- Passes.add(Opt->getTargetCtor()(*target.get()));
- } else
- std::cerr << argv[0] << ": cannot create pass: " << Opt->getPassName()
- << "\n";
-
if (PrintEachXForm)
- Passes.add(new PrintModulePass(&std::cerr));
+ Passes.add(new PrintModulePass(&cerr));
}
// Check that the module is well formed on completion of optimization
Passes.add(createVerifierPass());
// Write bytecode out to disk or cout as the last step...
- if (!NoOutput)
- Passes.add(new WriteBytecodePass(Out, Out != &std::cout));
+ OStream L(*Out);
+ if (!NoOutput && !AnalyzeOnly)
+ Passes.add(new WriteBytecodePass(&L, false, !NoCompress));
// Now that we have all of the passes ready, run them.
Passes.run(*M.get());
return 0;
+
} catch (const std::string& msg) {
- std::cerr << argv[0] << ": " << msg << "\n";
+ cerr << argv[0] << ": " << msg << "\n";
} catch (...) {
- std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
+ cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
}
return 1;
}
projects / oota-llvm.git / blobdiff